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White daylight photosensor for ceiling mount, nLight compatible, 12 to 24VDC

Acuity Sensor Switch

Acuity Sensor Switch NCM ADCX RJB daylight photosensor 12 24VDC

SKU CH-DKRW-984QN

Daylight photosensor for nLight control systems, 12 to 24 VDC ceiling mount with 45 sec. to 25 min. timer, UL and cUL listed, Title 24 compliant

  • Daylight sensing optimises lighting control
  • 12 to 24 VDC input suits low-voltage systems
  • Ceiling mount with included self-tapping screws
  • Digital Cat5 link to nLight control system
  • UL and cUL listed, Title 24 compliant

Product Identity

The Acuity Sensor Switch NCM ADCX RJB is a ceiling-mounted daylight photosensor designed for integration with the nLight control system. It operates on a low-voltage supply between 12 and 24VDC and is finished in white. The unit carries UL and cUL listings and meets Title 24 compliance requirements for energy standards. It ships with two self-tapping screws for installation.

Voltage Compatibility

The single specification that determines suitability is the operating voltage range of 12 to 24VDC. The photosensor must be connected to a compatible low-voltage power source within this range to function correctly with the nLight network. Installers should verify that the control system provides power within these limits before wiring the device. Supplying voltage outside this range will prevent operation.

Sustained Operation

Under continuous use the sensor maintains consistent daylight detection and communicates digitally over Cat5 cable to the nLight system. The adjustable timer holds the controlled load for a period ranging from 45 sec. to 25 min. after occupancy ceases. This timer range supports energy-saving strategies during extended occupied periods without requiring manual intervention. The digital communication method ensures reliable signal transmission over long cable runs.

Highlights

  • Daylight sensing optimises lighting control
  • 12 to 24 VDC input suits low-voltage systems
  • Ceiling mount with included self-tapping screws
  • Digital Cat5 link to nLight control system
  • UL and cUL listed, Title 24 compliant

Specifications

BrandACUITY SENSOR SWITCH

Questions about this item

How does the 12 to 24 VDC power range work once the photosensor is wired into a live circuit?

The unit accepts any DC supply between 12 and 24 volts, so it can be powered directly from common building control voltages without an extra transformer.

What does the digital Cat5 communication link actually limit in an nLight installation?

The Cat5 cable carries both data and power for the nLight bus, so cable length and device count must stay within the nLight bus specifications to avoid voltage drop.

What hardware is needed to mount the white ceiling photosensor?

Two self-tapping screws are included; they thread directly into a standard ceiling box or suitable surface for a flush white finish.

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